i already have a ladspa-plugin that process my audio data. this works fine without any problems.

Due to an adaption of the functionality of my system, i want to add a function that determines if the system works properly. This function should send an audio signal, that is recorded afterwards. And this should also work while no application (aplay, skype etc.) uses alsa.

Due to this I want to know if it's possible to use a plugin or an other virtual device that "keeps the floor".

2014-05-20 12:07 GMT+02:00 Fons Adriaensen <fons@linuxaudio.org>:

On Tue, May 20, 2014 at 10:59:46AM +0200, Martin Lohberger wrote:
> Does somebody of you have experience with ALSA-Devices that get never
> closed?
>
> I want to run a LADSPA-Plugin all the time, even if the application above
> is not running.

Or float in the air if the floor below your feet is
taken away ?

> Does sombody have an idea how to solve this problem?

A plugin, by definition, needs to be plugged into something else.
What is it supposed to do without 'the application above' ?

If you want an alsa device which includes a plugin this can
probably be done using an ~/.asoundrc.

--
FA

A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)